Ay/Ge198

Extrasolar Planets, spring term 2015-2016

Special Topics in the Planetary Sciences. 6 units (2-0-4); third term. Topic for 2015–16 is Extrasolar Planets. Thousands of planets have been identified in orbit around other stars. Astronomers are now embarking on understanding the statistics of extrasolar planet populations and characterizing individual systems in detail, namely star-planet, planet-planet and planet-disk dynamical interactions, physical parameters of planets and their composition, weather phenomena, etc. Direct and indirect detection techniques are now completing the big picture of extra-solar planetary systems in all of their natural diversity. The seminar-style course will review the state of the art in exoplanet science, take up case studies, detail current and future instrument needs, and anticipate findings.

Instructors: Konstantin Batygin (KB, 174 South Mudd, x2920, kbatygin@gps), Lynne Hillenbrand (LH, 218 Cahill, x6587, lah@astro), Dimitri Mawet (DM,146 Cahill, x1452, dmawet@astro).


Office Hours: by appointment - just email to make sure we are in the office.


Invited speakers: Heather Knutson (Caltech GPS), Karl Stapelfeldt (JPL, NASA Exoplanet Exploration Program), Kat Deck (Caltech GPS)


Class schedule: Friday 3:00-5:00pm


Class organization:

40 min talk (+10 min for questions) by instructor or invited speaker (see syllabus below for details).

1 grad student present/discusses 1 recent paper on the weekly subject: 20 min talk + 10 min for questions.

20 minute general discussion on weekly subject.

Undergrad students present their wikipedia assignment from previous week (see below), discussed for 20 minutes with everyone at the end of the class.


Recommended book: “Exoplanets”, Sara Seager, Editor, http://www.amazon.com/Exoplanets-Space-Science-Series-Seager/dp/0816529450


Class requirements:

Everyone: reading assignment from “Exoplanet” book (to be provided 1 week in advance).

Grad students: present recent paper of their choice, relevant to subject of the week. Sign up by sending instructor an email, first come first serve.

Undergrad students: need to identify relevant wikipedia page, over the next week study it, criticize it, then make a proposal to modify the corresponding wikipedia page.


Grading criteria:

- Attendance (sign-in sheet will be available)
- Participation during the classroom
- Grad students: preparing presentation including meeting with professor in advance; leading discussion during presentation
- Undergrad students: preparing wiki material, one leader per week, organize and coordinate with classmates, responsible for presentation of new material during the class, corrections and final upload of material


Syllabus, schedule and reading assignments:

Week 1 (KB, LH out of town), April 1: Giant planet theory, hot and warm Jupiters, migration
Discussion led by Mike Wong on "HOT STARS WITH HOT JUPITERS HAVE HIGH OBLIQUITIES”, Winn et al. 2010: http://adsabs.harvard.edu/abs/2010ApJ...718L.145W

Reading assignment in “Exoplanets”: D’Angelo et al. (p. 319), Lubow & Ida (p. 347)


Week 2 (LH), April 8: Radial velocity technique and major discoveries, past and future projects
Discussion led by Henry Ngo on "A rocky planet transiting a nearby low-mass star”, Berta-Thompson et al. 2015: http://adsabs.harvard.edu/abs/2015Natur.527..204B

Reading assignment in “Exoplanets”: Lovis & Fischer (p. 27)

Notes from LH hereUseful/fun links:

Fitting your own: http://oklo.org/systemic-console-tutorial-2-upsilon-andromedae/

Radial velocity simulator: http://astro.unl.edu/naap/esp/animations/radialVelocitySimulator.html


Week 3 (HK, confirmed), April 15: Transit technique, ground-based surveys, Corot, Kepler, major discoveries, future projects (TESS, PLATO)
Discussion led by Heather Knutson on "A map of the large day–night temperature gradient of a super-Earth exoplanet”, Demory et al. 2016, http://adsabs.harvard.edu/abs/2016arXiv160405725D (suggested by Michael Wong)

Reading assignment in “Exoplanets”: Winn (p. 55)


Week 4 (KD, confirmed), April 22: Bloated Jupiters, Transit Timing Variations, Transit spectroscopy

Discussion led by Siteng Fan on "A PRECISE WATER ABUNDANCE MEASUREMENT FOR THE HOT JUPITER WASP-43b”, Kreidberg et al. 2014: http://adsabs.harvard.edu/abs/2014ApJ...793L..27K

Reading assignments: https://arxiv.org/pdf/astro-ph/0412028v1http://arxiv.org/abs/1402.1169


Week 5 (KS, confirmed, KB and DM out of town), April 29: Circumstellar disks: infrared survey missions (IRAS, ISO, Spitzer, WISE, Herschel), the ALMA view

Discussion led by Chris Spalding on "LOW-MASS PLANETS IN PROTOPLANETARY DISKS WITH NET VERTICAL MAGNETIC FIELDS: THE PLANETARY WAKE AND GAP OPENING”: http://iopscience.iop.org/article/10.1088/0004-637X/768/2/143/meta

Reading assignment in “Exoplanets”: Roberge and Kamp (p. 269),
Recommendation from KS: 
http://arxiv.org/abs/1401.0743

Notes from KS: here.


Week 6 (CS, confirmed), May 6: From molecular clouds to planetary systems.

Presentation and discussion led by Chris Spalding. 

Reading assignment in “Exoplanets": slightly redundant with previous weeks. Skim through "PART IV: EXOPLANET FORMATION AND PROTOPLANETARY DISK EVOLUTION”

Note: we will review Wikipedia assignements in details.


Week 7 (DM), May 13: Direct imaging and spectroscopy of exoplanets, long-period planet systems.

Discussion led by Mike Wong. Papers:

http://adsabs.harvard.edu/abs/2015Sci...350...64M

http://adsabs.harvard.edu/abs/2015Sci...350...39M

Reading assignments, “Imaging Extrasolar Giant Planets” from former Caltech postdoc Brendan Bowler: here (do not distribute)

Reading assignment in “Exoplanets”: W. A. Traub and B. R. Oppenheimer (p. 111) 


Week 8 (KB), May 20: Planet formation and evolution.

Discussion led by Henry Ngo on the following papers on pebble accretion:

Lambrechts & Johansen 2012: http://www.aanda.org/articles/aa/abs/2012/08/aa19127-12/aa19127-12.html

Lambrechts & Johansen 2014: http://www.aanda.org/10.1051/0004-6361/201424343

Lambrechts, Johansen & Morbidelli 2014: http://www.aanda.org/10.1051/0004-6361/20142381


Week 9 (LH/DM, KB out of town), May 27: Caltech ditch day.


Week 10, June 3: Astrometry (GAIA), microlensing (WFIRST, and ground-based surveys).

Discussion led by Elizabeth Bailey on microlensing based on the following papers:

http://iopscience.iop.org/article/10.1088/0004-637X/778/2/150/meta
http://arxiv.org/abs/1603.05797

http://cdsads.u-strasbg.fr/abs/2016ApJ...819..125C

Reading assignment in “Exoplanets":

1) Quirrenbach (p. 157) - presented by LH

2) Gaudi (p. 79) - presented by DM
See also http://www.annualreviews.org/doi/pdf/10.1146/annurev-astro-081811-125518

© Dimitri Mawet 2015